Electric conductivity and band gap of solid C60 under high pressure

Yahachi Saito; Hisanori Shinohara; Manabu Kato; Hideo Nagashima; Masato Ohkohchi; Yoshinori Ando

doi:10.1016/0009-2614(92)85131-S

Electric conductivity and band gap of solid C₆₀ under high pressure

Yahachi Saito, Hisanori Shinohara, Manabu Kato, Hideo Nagashima, Masato Ohkohchi, Yoshinori Ando

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Abstract

Measurement of the electric resistivity of compressed C₆₀ powder up to 22 GPa at ambient temperature has revealed that the electric conductivity changes four orders of magnitude from 2 × 10^-6 Ω^-1 cm^-1 (below 8 GPa) to 3 × 10^-2 Ω^-1 cm^-1 (around 20 GPa). From the temperature dependence (ambient temperature to 400°C) of the conductivity, which behaves like a semiconductor, the band gap is derived as follows: 1.6 ± 0.1 eV at 3 and 6 GPa, and 1.2 ± 0.1 eV at 10 GPa.

Original language	English
Pages (from-to)	236-240
Number of pages	5
Journal	Chemical Physics Letters
Volume	189
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(92)85131-S
Publication status	Published - Feb 7 1992
Externally published	Yes

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All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Cite this

Saito, Y., Shinohara, H., Kato, M., Nagashima, H., Ohkohchi, M., & Ando, Y. (1992). Electric conductivity and band gap of solid C₆₀ under high pressure. Chemical Physics Letters, 189(3), 236-240. https://doi.org/10.1016/0009-2614(92)85131-S

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abstract = "Measurement of the electric resistivity of compressed C60 powder up to 22 GPa at ambient temperature has revealed that the electric conductivity changes four orders of magnitude from 2 × 10-6 Ω-1 cm-1 (below 8 GPa) to 3 × 10-2 Ω-1 cm-1 (around 20 GPa). From the temperature dependence (ambient temperature to 400°C) of the conductivity, which behaves like a semiconductor, the band gap is derived as follows: 1.6 ± 0.1 eV at 3 and 6 GPa, and 1.2 ± 0.1 eV at 10 GPa.",

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AU - Ando, Yoshinori

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AB - Measurement of the electric resistivity of compressed C60 powder up to 22 GPa at ambient temperature has revealed that the electric conductivity changes four orders of magnitude from 2 × 10-6 Ω-1 cm-1 (below 8 GPa) to 3 × 10-2 Ω-1 cm-1 (around 20 GPa). From the temperature dependence (ambient temperature to 400°C) of the conductivity, which behaves like a semiconductor, the band gap is derived as follows: 1.6 ± 0.1 eV at 3 and 6 GPa, and 1.2 ± 0.1 eV at 10 GPa.

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10.1016/0009-2614(92)85131-S